| Acronym | Meaning |
| HRD | High Rate Dosimeter |
| RVDT | Rotary Variable Differential Transducer |
| TSS | Time Sharing System |
| M | BACMarshall Booster Assembly Contractor |
| DRD | Data Requirements Document |
| CUC | ComPuter Usage Control |
| CICU | Computer Interface Conditioning Unit |
| SCM | Site Configuration Message |
| DNO | Descending Node Orbit |
| PT | Pint |